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How Master Project and Subproject Baselines Work

The master project baseline information is an aggregation of its own baseline information and subprojects. The baseline is dynamically aggregated at the time you set the baseline. The master project resource baseline information is an aggregation of the team baseline information.

When you open a baselined master project and add a new subproject, the current baseline for the subproject is saved. When you baseline the master project, the new baseline replaces the subproject baseline. The baseline becomes the current baseline for the master project. The subproject information is aggregated and rolled up to the master project baseline.

If subprojects of the master project have more than one baseline, the current baseline displays in views. The subproject baseline inherits the name and the ID of the master project baseline. If the subproject already has a baseline with the same ID, that baseline is updated and a new baseline is not created. The link between the master project baseline and the subproject baseline is created based on the baseline ID. The baseline ID is shared between the two baselines.

When you delete a master baseline, the subproject baseline is also deleted.

More information:

Edit Baselines (Investments)